Comparative Study on Different Wire Breakage Codes of Towers

Abstract:

Analysed three design standards on the combination of wire breakage load and the value of tension load over the past decade , According to 1M module of State Grid Tower "typical design-110kV transmission line volumes", selected a straight pole and a corner pole to carry out comparative studies, mainly calculated and analyzed the towers bending moments on the different standards or codes of wire breakage situation and wire breakage tension changes , discussed the change of safety factors of lines’ impact on the tower's bending moments; analyzed synthetically the changes of the pole actual bending moments and weight resulting from inequable ice-coating and other load combination; finally drew a conclusion that national standard increased the tower design standards, and project investment corresponding increased, then put forward reasonable proposals considering the security and economic aspects. Analysis and study are very meaningful and valuable to the different parts of towers calculation and checksum.

• Periodical: Advanced Materials Research (Volumes 433-440)
• Pages: 4603-4609
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.433-440.4603
• Online since: January 2012
• Authors: Yi Wei Lin, Sui Min Meng, Zhi Min Li, Xiang Hui Yin
• Keywords: Codes of Wire Breakage, Comparative Study, Tower, Transmission Line

References

[1] DL / T 5092-1999, Technical code for design of 110 ~500kV overhead transmission line [S]. Beijing: China Electric Power Press, (1999).

[2] Q / GDW 179-2008, Technical code for design of 110 ~750kV overhead transmission line [S]. Beijing: State Grid Corporation, (2008).

[3] GB 50545-2010, Technical code for design of 110 ~750kV overhead transmission line [S]. Beijing: China Electric Power Press, (2010).

[4] Liu Zhenya. Typical design for State Grid Corporation Transmission Project, 110kV transmission line volumes. Beijing: China Electric Power Press, (2005).